A kind of osteotomy guiderTechnical field
The present invention relates to osteotomy guider.
Background technology
Treatment means of the knee prosthesis as illnesss such as treatment osteoarthritis, have clinically carried out for many years, marketBased on the replacement knee in arthroplasty of surface, by the femur and Tibial osteotomy to patient, after lesion portion is removed, placement is artificialKnee-joint prosthesis.Wherein osteotomy instrument can be divided into femur osteotomy and Tibial osteotomy as important operating theater instruments.As shown in figure 1,Femoral prosthesis includes five faces to bone surface, and P1 is front side osteotomy surface, and P2, P4 are chamfering osteotomy surface, and P3 is osteotomy of distal face, P5For rear side osteotomy surface, so femur osteotomy, including distal femur osteotomy, chamfering osteotomy and front and rear side osteotomy.Distal femur is cutBone uses osteotomy of distal guider, and other femur osteotomy close 1 osteotomy guider using 4, because everyone femur is of different sizes,Corresponding femoral prosthesis also has different specifications, and the 4 conjunction each specifications of 1 osteotomy guider that present market mainly uses correspond to correspondingProsthese specification, i.e. 1 osteotomy guider of corresponding one 4 conjunction of each lateral femoral condyle prosthesis so both adds processing cost, takes againMore instrument case space.
The content of the invention
For problems of the prior art, the purpose of the present invention can facilitate, synchronously to three to provide one kindOsteotomy part carries out quick-adjustsing osteotomy guider simultaneously.
To achieve the above object, the present invention provides following technical scheme：
A kind of osteotomy guider, including：
Adjustment part, the adjustment part include bar portion, and one end of the bar portion is provided with butting section；
Chamfering osteotomy part, the chamfering osteotomy part position are adjustably connected with the adjustment part relatively, the chamfering osteotomyPart both sides are respectively first side and second side；
Front side osteotomy part, the front side osteotomy part are slidably connected described in the chamfering osteotomy part by the first guiding structuralFirst side, and be flexibly connected by the first attachment structure with the adjustment part, front side is additionally provided with the front side osteotomy partKnife gap；
Rear side osteotomy part, the rear side osteotomy part are slidably connected described in the chamfering osteotomy part by the second guiding structuralSecond side, and be flexibly connected by the second attachment structure with the adjustment part, rear side is additionally provided with the rear side osteotomy partKnife gap；
Numerical selection part, the numerical selection part connect the chamfering osteotomy part, drive the adjustment part to change the adjustment part and instituteState the relative position of chamfering osteotomy part, at the same by the cooperation of first guiding structural and the first attachment structure change it is described beforeThe position of the relatively described adjustment part of side osteotomy part, by described in the cooperation change of second guiding structural and the second attachment structureThe position of the relatively described adjustment part of rear side osteotomy part.
Further, the first rose reamer gap and the second rose reamer gap are provided with the chamfering osteotomy part.
Further, first attachment structure includes head rod, and second attachment structure includes the second connecting rod,The front side osteotomy part is pivotally connected the adjustment part by head rod, and the rear side osteotomy part passes through the second connecting rod pivotTurn the connection adjustment part.
Further, the first inclined-plane is provided with the first side, the second inclined-plane is provided with the second side, it is describedFront side osteotomy part side is the 3rd inclined-plane, and the rear side osteotomy part side is the 4th inclined-plane, the parallel cooperation institute in the 3rd inclined-planeThe first inclined-plane is stated, the 4th inclined-plane is parallel to coordinate second inclined-plane.
Further, the first inclined-plane is equal to second inclined-plane relative to the bar portion relative to the angle of inclination of the bar portionAngle of inclination.
Further, the first inclined-plane is not equal to second inclined-plane relative to the bar relative to the angle of inclination of the bar portionThe angle of inclination in portion.
Further, first guiding structural includes the first guiding block and the first guide channel to match, first guidingBlock is arranged in the chamfering osteotomy part and the front side osteotomy part on any osteotomy part, and first guide channel is arranged on describedIn chamfering osteotomy part and the front side osteotomy part on another osteotomy part.
Further, second guiding structural includes the second guiding block and the second guide channel to match, second guidingBlock is arranged in the chamfering osteotomy part and the rear side osteotomy part on any osteotomy part, and second guide channel is arranged on describedIn chamfering osteotomy part and the rear side osteotomy part on another osteotomy part.
Further, the numerical selection part includes platen, spring and connecting pin, and it is different to be provided with multiple depth on the platenRetaining groove, bumping post is provided with the bar portion of the adjustment part, the through hole that the chamfering osteotomy part is arranged the bar portion is stepHole, the spring are pressed against between the bumping post and the step, and the bumping post and the retaining groove match, and the connecting pin is by instituteStating platen can rotationally be pressed against on the chamfering osteotomy part.
Further, the other end of the bar portion is additionally provided with operating portion, the head rod and second connecting rodIt is pivotally connected the operating portion.
Further, the numerical selection part includes a pin, and the pin one has protuberance, is provided with the protuberancePositioning hole, alignment pin is provided with the chamfering osteotomy part, and the alignment pin matches with the positioning hole.
Further, the pin other end is provided with helicla flute, is provided with bumping post in the bar portion of the adjustment part, instituteBumping post is stated to be slidably matched with the helicla flute.
Further, first attachment structure includes the 3rd connecting rod, and second attachment structure includes the 4th connecting rod,One end of 3rd connecting rod and the 4th connecting rod is fixedly installed on the butting section, other end suspension, describedFront side osteotomy part is slidably located in the 3rd connecting rod, and the rear side osteotomy part is slidably located in the 4th connecting rodOn.
Further, the 3rd connecting rod and the 4th connecting rod have a guiding angle between the bar portionDegree.
Further, the front side osteotomy part and the rear side osteotomy part pass through the guide pillar and guide pillar pore structure of mutual cooperationBe slidably connected the chamfering osteotomy part.
Compared with prior art, numerical selection part driving adjustment part changes the fixation on chamfering osteotomy part to the present invention in the present inventionPosition, while position of the front side osteotomy part with respect to adjustment part is changed by the cooperation of the first guiding structural and the first attachment structure,Position of the rear side osteotomy part with respect to adjustment part is changed by the cooperation of the second guiding structural and the second attachment structure, so as to convenient fastThree osteotomy part synchronous adjustments are realized fastly, are saved operating time, are significantly reduced the pain of operation risk and sufferer.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is knee-joint prosthesis osteotomy surface structural representation；
Fig. 2 and Fig. 3 is osteotomy guider operating process schematic diagram of the present invention；
Fig. 4 is the corresponding femoral prosthesis seriation structural representation of the present invention；
Fig. 5 is osteotomy guider dimensional structure diagram of the present invention；
Fig. 6 is osteotomy guider right side structural representation of the present invention；
Fig. 7 is osteotomy guider main structure diagram of the present invention；
Fig. 8 is osteotomy guider left view structural representation of the present invention；
Fig. 9 is operating position schematic diagram in the specific embodiment of osteotomy guider one of the present invention；
Figure 10 is that front and rear contrast main structure diagram is adjusted in the specific embodiment of osteotomy guider one of the present invention；
Figure 11 is that front and rear contrast dimensional structure diagram is adjusted in the specific embodiment of osteotomy guider one of the present invention；
Figure 12 is the specific embodiment dimensional structure diagram of osteotomy guider one of the present invention；
Figure 13 is numerical selection part structural representation in the specific embodiment of osteotomy guider one of the present invention；
Figure 14 is the specific embodiment cross section structure diagram of osteotomy guider one of the present invention；
Figure 15 is the specific embodiment decomposition texture schematic diagram of osteotomy guider one of the present invention；
Figure 16 is osteotomy guider another specific embodiment decomposition texture schematic diagram of the present invention；
Figure 17 is osteotomy guider another specific embodiment dimensional structure diagram of the present invention；
Figure 18 is numerical selection part structural representation in osteotomy guider another specific embodiment of the present invention.
Embodiment
Embodying the exemplary embodiments of feature of present invention and advantage will describe in detail in the following description.It should be understood that thisInvention can have various changes in different embodiments, and it is neither departed from the scope of the present invention, and it is therein explanation andAccompanying drawing inherently is illustrated as being used, and is not used to the limitation present invention.
The usually used course of work of osteotomy guider 1 as shown in Figures 2 and 3, first cuts out osteotomy of distal on bone 2Face, then on the basis of this face, osteotomy guider 1 is fixed on bone 2 by fixing glue 4, then cut using osteotome 3Each osteotomy surface of bone 2 is cut off under the guiding of bone guider 1.
The basis that the present invention designs is, belongs to a series of various sizes of knee-joint prosthesis femoral component,For its prosthese into five planes of bone surface, the angle of two chamfer planes and osteotomy of distal face vertical line keeps constant, is α and β,As shown in Figure 4.Lateral femoral condyle prosthesis chamfering osteotomy surface and vertical direction angle phase between different size in a series of osteotomy guiders 1Together, i.e., the chamfering osteotomy surface of a series of osteotomy plate guiders 1 and the angle of osteotomy of distal face vertical line are α and β.
As shown in Figure 5-Figure 8, osteotomy guider 1 of the invention includes adjustment part 10, chamfering osteotomy part 11, front side osteotomy part12nd, rear side osteotomy part 13 and numerical selection part 14.Wherein, adjustment part 10 includes bar portion 101, and one end of bar portion 101 is provided with butting section102.The position of chamfering osteotomy part 11 is adjustably set in the bar portion 101 of adjustment part 10, and bar portion 101 is perpendicular to butting section 102Place plane, the first rose reamer gap 161 and the second rose reamer gap 163 is provided with chamfering osteotomy part, the first rose reamer gap 161As cut off set by a chamfering osteotomy surface, the second rose reamer gap 163 is to cut off set by another chamfering osteotomy surface.First chamferingThe angle of knife gap and the vertical line of butting section 102 is α, and the second rose reamer gap and the angle of the vertical line of butting section 102 are β, are so cutAfter bone, the angle of two chamfering osteotomy surfaces and osteotomy of distal face vertical line is α and β.
Certainly according to circumstances, knife gap can not also be set.The first side of chamfering osteotomy part 11 is provided with the first inclined-plane, theOne inclined-plane is A relative to the angle of inclination of bar portion 101, the second inclined-plane is provided with second side, the second inclined-plane is relative to bar portion 101Angle of inclination is B, and A could be arranged to be equal to B or not equal to B.The side of front side osteotomy part 12 is the 3rd inclined-plane, front side osteotomy part12 are slidably arranged in the first side of chamfering osteotomy part 11 by the first guiding structural 122, and the 3rd inclined-plane and the first inclined-plane are carried outCoordinate and slide.Front side knife gap 162 is additionally provided with front side osteotomy part 12, the front side knife gap 162 is to cut off front side osteotomy surface instituteIf.The side of rear side osteotomy part 13 is the 4th inclined-plane, and rear side osteotomy part 13 is slidably arranged in chamfering by the second guiding structural 132 and cutThe second side of osteomere 11, the 4th inclined-plane and the second inclined-plane carry out cooperation slip.Rear side knife is additionally provided with rear side osteotomy part 13Gap 164, the rear side knife gap 164 are to cut off set by rear side osteotomy surface.Numerical selection part 14 is sleeved on the bar portion 101 of adjustment part 10, withChamfering osteotomy part 11 is connected, and numerical selection part 14 drives chamfering osteotomy part 11 to change its fixed position on adjustment part 10, leads to simultaneouslyThe position that the first guiding structural 122 changes 12 relative adjustment part 10 of front side osteotomy part is crossed, after changing by the second guiding structural 132Position of the side osteotomy part 13 with respect to adjustment part 10.
As shown in Figure 12-Figure 15, for the structural representation of the specific embodiment of osteotomy guider 1 one of the present invention.Wherein, it is precedingSide osteotomy part 12 is pivotally connected adjustment part 10 by head rod 121, and rear side osteotomy part 13 is pivoted by the second connecting rod 131Adjustment part 10 is connected, the guiding structural 122 of head rod 121 and first coordinates fixed front side osteotomy part 12, the second connecting rod 131Coordinate fixed rear side osteotomy part 13 with the second guiding structural 132.
In the present embodiment, the first guiding structural 122 includes the first guiding block and the first guide channel to match, the first guiding blockIt is arranged in chamfering osteotomy part 11 and front side osteotomy part 12 on any osteotomy part, the first guide channel is arranged on the He of chamfering osteotomy part 11In front side osteotomy part 12 on another osteotomy part.That is, set the first guiding block on chamfering osteotomy part 11, then front side osteotomy partFirst guide channel is set on 12, first guide channel is set on chamfering osteotomy part 11, then the first guiding is set on front side osteotomy part 12Block.Similarly, the second guiding structural 132 includes the second guiding block and the second guide channel to match, and the second guiding block is arranged on downIn angle osteotomy part 11 and rear side osteotomy part 13 on any osteotomy part, the second guide channel is arranged on chamfering osteotomy part 11 and rear side osteotomyIn part 13 on another osteotomy part.That is, setting the second guiding block on chamfering osteotomy part 11, then set on rear side osteotomy part 13Second guide channel, the second guide channel is set on chamfering osteotomy part 11, then second guiding block is set on rear side osteotomy part 13.
In the present embodiment, as shown in figure 13, and with reference to shown in Fig. 8 and Figure 14, numerical selection part 14 includes platen 141, spring142 and connecting pin 143, the retaining groove 1412 different with multiple depth of chute 1411, the bar portion of adjustment part 10 are provided with platen 141Bumping post 104 is provided with 101, the through hole that chamfering osteotomy part 11 is arranged bar portion 101 is stepped hole, and spring 142 is pressed against bumping post 104Between step, bumping post 104 matches with retaining groove 1412, and connecting pin 143 1 is connected through chute 1411 with chamfering osteotomy part 11,The two sides of chute 1411 are pressed against in the convex portion of other end, and platen 141 can be rotationally pressed against chamfering osteotomy part by connecting pin 143On 11.When platen 141 turns to diverse location, bumping post 104 coordinates the retaining groove 1412 of different depth, so as to pass through spring 142The position of 11 relative adjustment part 10 of power adjustment chamfering osteotomy part is leaned, while passes through the first guiding structural 122 and head rod121 cooperation changes the position of 12 relative adjustment part 10 of front side osteotomy part, passes through the second guiding structural 132 and the second connecting rod131 cooperation changes the position of 13 relative adjustment part 10 of rear side osteotomy part, so as to realize the first rose reamer of synchronous adjustment gap 161,Front side knife gap 162, the second rose reamer gap 163, the synchronous adjustment of rear side knife gap 164, i.e., four osteotomy surfaces of synchronous adjustment is specificPosition.
In addition, in the present embodiment, the other end of bar portion 101 is additionally provided with operating portion 103, head rod 121 and secondConnecting rod 131 is pivotally connected operating portion 103.As shown in figure 9, when needing to be adjusted, to the force of operating portion 103 as in figureShown in arrow, bumping post 104 exits retaining groove 1412, then rotates platen 141 and arrives correct position, decontrols operating portion 103, bumping post 104Enter corresponding retaining groove 1412 under the impetus power of spring 142, that is, complete this adjustment.Moreover, for convenience of adjustment, this realityApply and be provided with station location marker in example on the outer peripheral face of platen 141, datum line is provided with chamfering osteotomy part 11, position is carried out to facilitateAdjust and ensure to rotate in place.
As shown in Figure 10 and Figure 11, be the present embodiment in from No. 3 bit maps to No. 4 positions when comparison diagram, each part have withLower change：Front side osteotomy part 12 moves right H, and moves H × tanA along ramping up, and completes determining for front side osteotomy surface positionPosition.Rear side osteotomy part 13 moves right H, and moves down H × tanB along slope, completes the positioning of rear side osteotomy surface position.Adjustment part 10 moves right H, and 11 positions of chamfering osteotomy part are constant, due to the overall H that moves right of adjustment part 10, chamfering osteotomy part 11A gap H is formed with the butting section 102 of adjustment part 10, and mobile distance H is the depth of retaining groove corresponding to No. 3 positions on platen 14The difference of the depth of degree retaining groove corresponding with No. 4 positions.Because butting section 102 is to be fitted on osteotomy of distal face to carry out 41 osteotomy of conjunction, chamfering osteotomy part 11 is moved to the left relative to butting section 102, then when carrying out osteotomy, the position of chamfering osteotomy is respectively to femurSide is offset before and after distal end, is changed into No. 4 position osteotomy from No. 3 position osteotomy.
As exemplified in figs, it is the structural representation of the another specific embodiment of osteotomy guider 1 of the invention.At thisThe structure of mainly numerical selection part 14 is different from previous embodiment in embodiment, the fixation of front side osteotomy part 12 and rear side osteotomy part 13There is also difference for mode.
In the present embodiment, numerical selection part 14 includes a pin 146, and pin 146 1 has a protuberance, protuberance it is cylindricalIf being provided with dry hole week, corresponding different type figure.Alignment pin 148, alignment pin 148 and pin are provided with chamfering osteotomy part 11Hole on the protuberance of post 146 matches.Coordinated by the telescopic elastic extended on hole and alignment pin 148 and positioned, andPin 146 and chamfering osteotomy part 11 are linked together.Helicla flute 147 is provided with the bar portion outer peripheral face of pin 146, is being adjustedPart bar portion 101 is provided with bumping post 104, and bumping post 104 is inserted in helicla flute 147, and helicla flute can be relative to the screw of bumping post 104.
In the present embodiment, the butting section 102 of adjustment part 10 is also connected with being provided with the oblique company of 3rd connecting rod 106 and the 4thExtension bar 108, the 3rd connecting rod 106 are A relative to the angle of adjustment part bar portion 101, and the 4th connecting rod 106 is relative to adjustment part barThe angle in portion 101 is B, and the angle A and B are that guiding front side osteotomy part and rear side osteotomy part move along fixed angle direction respectivelySteering angle, with ensure front side osteotomy part and rear side osteotomy part before and after movement with respect to adjustment part 10 bar portion 101 angleIt is constant.Front side osteotomy part 12, which slides, is arranged the 3rd connecting rod 106 of connection, and rear side osteotomy part 13, which slides, is arranged the company of connection the 4thExtension bar 108.Front side osteotomy part 12 and rear side osteotomy part 13 are connected by guide pillar and the structure of guide pillar hole, and chamfering osteotomy part 11,The set location of guide pillar and guide pillar hole can determine according to being actually needed, another as long as ensureing that one is arranged on chamfering osteotomy partIt is arranged on front side chamfering osteotomy part (and rear side osteotomy part)., can be in the 3rd connection by the cooperation of guide pillar and guide pillar holeUnder the drive of the connecting rod 108 of bar 106 and the 4th, front side osteotomy part 12 and rear side osteotomy part 13 is set to be moved in the vertical direction along guide pillarIt is dynamic, realize the position adjustment and fixation of front side osteotomy part 12 and rear side osteotomy part 13.
In the present embodiment, the cooperation position of bumping post 104 and helicla flute 147 is adjusted by rotating pin 146, so as to driveWith respect to adjustment part 10 change in location occurs for chamfering osteotomy part 11, front side osteotomy part 12 and rear side osteotomy part 13, realizes synchronous adjustment.4 are adjusted to when being adjusted, such as from model 3, pin 146 is rotated, makes the elastic on alignment pin 148 convex from pin 146Ejected in the portion of rising in hole corresponding to model 3, pin 146 rotates an angle, until the elastic on alignment pin 146 inserts modelIn hole corresponding to 4, stop the rotation.Now bumping post 104 moves a horizontal range H in the helicla flute 147 of alignment pin 146,I.e. chamfering osteotomy part 11 moves a distance H relative to butting section, and front side osteotomy part moves up H along the 3rd connecting rod 106× tanA, the positioning of front side osteotomy surface position being completed, rear side osteotomy part 13 moves down H × tanB along the 4th connecting rod 108,So as to by the rotation of alignment pin 146, complete the change of two chamfering osteotomy amounts and forward and backward osteotomy amount.
The present invention drives adjustment part 10 by numerical selection part 14, chamfering osteotomy part 11 is had a level relative to adjustment part 10The movement in direction, meanwhile, drive front/rear osteotomy part 12/13 to have the movement of a fore-and-aft direction, so as to realize that single stepping causesThe change of four osteotomy surface osteotomy amounts, facilitates doctor to operate, and improves operating efficiency.
Only needing to adjust front/rear osteotomy part 12/13 for some has the movement of a fore-and-aft direction, is cut without adjusting chamferingThe situation of bone amount, rose reamer gap can not be set in chamfering osteotomy part 11, and it is forward and backward can now to realize that single stepping causesThe change of osteotomy surface.
Technical scheme is disclosed as above by preferred embodiment.Artisan will appreciate that do not taking offThe change and retouching made in the case of from the scope and spirit of the present invention disclosed in appended claims of the invention, belong toWithin the scope of the claims of the present invention.